11823638456 has 24 divisors (see below), whose sum is σ = 25788804120. Its totient is φ = 5067273456.

The previous prime is 11823638419. The next prime is 11823638509. The reversal of 11823638456 is 65483632811.

It is a self number, because there is not a number n which added to its sum of digits gives 11823638456.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 15080780 + ... + 15081563.

It is an arithmetic number, because the mean of its divisors is an integer number (1074533505).

Almost surely, 2^11823638456 is an apocalyptic number.

It is an amenable number.

11823638456 is an abundant number, since it is smaller than the sum of its proper divisors (13965165664).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11823638456 is a wasteful number, since it uses less digits than its factorization.

11823638456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30162363 (or 30162352 counting only the distinct ones).

The product of its digits is 829440, while the sum is 47.

The spelling of 11823638456 in words is "eleven billion, eight hundred twenty-three million, six hundred thirty-eight thousand, four hundred fifty-six".